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Delphi Examples

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Article: Understanding COM References in Delphi

Send S/MIME Signed and Encrypted Email

Download Chilkat Email ActiveX

Sending a signed and encrypted email is as easy as setting both the SendEncrypted and SendSigned properties. The email is signed using the private key of the sender's certificate, and encrypted using the public key of the recipient's certificate.

uses
    Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
    Dialogs, StdCtrls,
    CHILKATMAILLib2_TLB,
    OleCtrls;

...

procedure TForm1.Button1Click(Sender: TObject);
var
mailman: TChilkatMailMan2;
success: Integer;
email: CHILKATMAILLib2_TLB.IChilkatEmail2;

begin

// The mailman object is used for sending and receiving email.
mailman := TChilkatMailMan2.Create(Self);

// Any string argument automatically begins the 30-day trial.
success := mailman.UnlockComponent('30-day trial');
if (success <> 1) then
  begin
    ShowMessage('Component unlock failed');

  end;

// Set the SMTP server.
mailman.SmtpHost := 'smtp.comcast.net';

// Create a new email object
email := CoChilkatEmail2.Create();

email.Subject := 'This email is signed and encrypted';
email.Body := 'This is a digitally signed and encrypted mail';
email.From := 'Chilkat Support <admin@chilkatsoft.com>';
email.AddTo('TagTooga','admin@tagtooga.com');

// To send signed and encrypted email, set both
// SendSigned and SendEncrypted:
email.SendSigned := 1;
email.SendEncrypted := 1;

success := mailman.SendEmail(email);
if (success <> 1) then
  begin
    ShowMessage(mailman.LastErrorText);
  end
else
  begin
    ShowMessage('Mail Sent!');
  end;
end;

 

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Mail Component · .NET Email Component · XML Parser